/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/memsafety/test-0158-3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:59:28,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:59:28,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:59:28,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 16:59:28,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 16:59:28,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 16:59:28,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 16:59:28,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 16:59:28,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 16:59:28,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 16:59:28,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 16:59:28,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 16:59:28,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:59:28,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:59:28,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:59:28,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:59:28,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:59:28,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:59:28,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:59:28,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:59:28,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:59:28,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:59:28,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:59:28,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:59:28,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 16:59:28,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 16:59:28,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 16:59:28,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 16:59:28,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 16:59:28,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 16:59:28,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 16:59:28,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 16:59:28,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 16:59:28,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:59:28,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:59:28,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:59:28,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 16:59:28,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:59:28,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:59:28,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:59:28,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:59:28,182 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:59:28,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:59:28,182 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 16:59:28,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:59:28,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:59:28,183 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 16:59:28,183 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 16:59:28,183 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 16:59:28,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:59:28,184 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 16:59:28,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:59:28,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:59:28,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:59:28,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:59:28,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:59:28,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:59:28,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:59:28,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:59:28,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:59:28,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:59:28,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:59:28,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:59:28,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:59:28,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:59:28,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:59:28,655 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:59:28,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-3.i [2020-12-23 16:59:28,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/cbf947970/9038f880d60b467cba81d7a221b767c5/FLAG7742969e8 [2020-12-23 16:59:29,494 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:59:29,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-3.i [2020-12-23 16:59:29,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/cbf947970/9038f880d60b467cba81d7a221b767c5/FLAG7742969e8 [2020-12-23 16:59:29,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/cbf947970/9038f880d60b467cba81d7a221b767c5 [2020-12-23 16:59:29,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:59:29,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:59:29,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:59:29,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:59:29,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:59:29,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f82c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29, skipping insertion in model container [2020-12-23 16:59:29,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:59:29,824 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~data~0,],p0] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~data~0,],str],p2] left hand side expression in assignment: lhs: ArrayLHS[StructLHS[StructLHS[VariableLHS[~data~0,],str],c],[IntegerLiteral[1]]] [2020-12-23 16:59:30,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:59:30,211 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#data~0,],base],StructAccessExpression[IdentifierExpression[~#data~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#data~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[10],StructAccessExpression[IdentifierExpression[~#data~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#data~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[1],StructAccessExpression[IdentifierExpression[~#data~0,],offset]]]] [2020-12-23 16:59:30,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:59:30,417 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:59:30,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30 WrapperNode [2020-12-23 16:59:30,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:59:30,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:59:30,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:59:30,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:59:30,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:59:30,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:59:30,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:59:30,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:59:30,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... [2020-12-23 16:59:30,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:59:30,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:59:30,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:59:30,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:59:30,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:59:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:59:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:59:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:59:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:59:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:59:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:59:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:59:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:59:30,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:59:30,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:59:30,991 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 16:59:30,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:30 BoogieIcfgContainer [2020-12-23 16:59:30,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:59:30,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:59:30,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:59:31,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:59:31,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:59:29" (1/3) ... [2020-12-23 16:59:31,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3443f0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:59:31, skipping insertion in model container [2020-12-23 16:59:31,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:30" (2/3) ... [2020-12-23 16:59:31,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3443f0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:59:31, skipping insertion in model container [2020-12-23 16:59:31,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:30" (3/3) ... [2020-12-23 16:59:31,005 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-3.i [2020-12-23 16:59:31,013 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:59:31,019 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-23 16:59:31,043 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-23 16:59:31,075 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:59:31,075 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 16:59:31,075 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:59:31,075 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:59:31,076 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:59:31,076 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:59:31,076 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:59:31,076 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:59:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-23 16:59:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 16:59:31,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:31,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 16:59:31,113 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:31,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:31,120 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-23 16:59:31,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:31,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297147540] [2020-12-23 16:59:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:31,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297147540] [2020-12-23 16:59:31,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:31,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:59:31,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442197488] [2020-12-23 16:59:31,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:59:31,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:31,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:59:31,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:59:31,379 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-12-23 16:59:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:31,456 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2020-12-23 16:59:31,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:59:31,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 16:59:31,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:31,466 INFO L225 Difference]: With dead ends: 29 [2020-12-23 16:59:31,466 INFO L226 Difference]: Without dead ends: 27 [2020-12-23 16:59:31,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:59:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-23 16:59:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-23 16:59:31,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-23 16:59:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-12-23 16:59:31,502 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 3 [2020-12-23 16:59:31,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:31,503 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-12-23 16:59:31,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:59:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-12-23 16:59:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 16:59:31,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:31,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 16:59:31,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:59:31,504 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:31,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:31,506 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-23 16:59:31,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:31,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429313844] [2020-12-23 16:59:31,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:31,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429313844] [2020-12-23 16:59:31,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:31,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:59:31,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015125249] [2020-12-23 16:59:31,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:59:31,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:31,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:59:31,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:59:31,600 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 3 states. [2020-12-23 16:59:31,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:31,650 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-12-23 16:59:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:59:31,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 16:59:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:31,652 INFO L225 Difference]: With dead ends: 22 [2020-12-23 16:59:31,653 INFO L226 Difference]: Without dead ends: 22 [2020-12-23 16:59:31,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:59:31,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-23 16:59:31,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-23 16:59:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-23 16:59:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-12-23 16:59:31,663 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 3 [2020-12-23 16:59:31,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:31,664 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-12-23 16:59:31,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:59:31,664 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-12-23 16:59:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 16:59:31,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:31,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:31,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:59:31,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:31,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1837108007, now seen corresponding path program 1 times [2020-12-23 16:59:31,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:31,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279338925] [2020-12-23 16:59:31,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:31,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279338925] [2020-12-23 16:59:31,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:31,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:59:31,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713622712] [2020-12-23 16:59:31,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:59:31,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:31,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:59:31,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:59:31,779 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 5 states. [2020-12-23 16:59:31,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:31,865 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-12-23 16:59:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:59:31,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-23 16:59:31,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:31,867 INFO L225 Difference]: With dead ends: 21 [2020-12-23 16:59:31,867 INFO L226 Difference]: Without dead ends: 21 [2020-12-23 16:59:31,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:59:31,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-23 16:59:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-23 16:59:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-23 16:59:31,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-12-23 16:59:31,872 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 9 [2020-12-23 16:59:31,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:31,872 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-12-23 16:59:31,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:59:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-12-23 16:59:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 16:59:31,873 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:31,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:31,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 16:59:31,874 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:31,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1115773421, now seen corresponding path program 1 times [2020-12-23 16:59:31,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:31,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577766465] [2020-12-23 16:59:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:31,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577766465] [2020-12-23 16:59:31,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:31,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:59:31,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026899207] [2020-12-23 16:59:31,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:59:31,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:31,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:59:31,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:59:31,982 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 5 states. [2020-12-23 16:59:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:32,080 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-12-23 16:59:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:59:32,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 16:59:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:32,081 INFO L225 Difference]: With dead ends: 20 [2020-12-23 16:59:32,081 INFO L226 Difference]: Without dead ends: 20 [2020-12-23 16:59:32,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:59:32,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-23 16:59:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-23 16:59:32,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-23 16:59:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-12-23 16:59:32,086 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 10 [2020-12-23 16:59:32,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:32,086 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-12-23 16:59:32,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:59:32,087 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-12-23 16:59:32,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 16:59:32,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:32,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:32,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 16:59:32,088 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:32,089 INFO L82 PathProgramCache]: Analyzing trace with hash 229237737, now seen corresponding path program 1 times [2020-12-23 16:59:32,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:32,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601805807] [2020-12-23 16:59:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:32,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601805807] [2020-12-23 16:59:32,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:32,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:59:32,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406448419] [2020-12-23 16:59:32,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:59:32,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:32,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:59:32,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:59:32,186 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 5 states. [2020-12-23 16:59:32,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:32,242 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-12-23 16:59:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:59:32,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-23 16:59:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:32,243 INFO L225 Difference]: With dead ends: 19 [2020-12-23 16:59:32,243 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 16:59:32,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:59:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 16:59:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-23 16:59:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-23 16:59:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-12-23 16:59:32,247 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 11 [2020-12-23 16:59:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:32,248 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-12-23 16:59:32,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:59:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-12-23 16:59:32,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 16:59:32,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:32,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:32,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 16:59:32,249 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:32,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:32,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1483564689, now seen corresponding path program 1 times [2020-12-23 16:59:32,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:32,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363317352] [2020-12-23 16:59:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:32,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363317352] [2020-12-23 16:59:32,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:32,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 16:59:32,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368890496] [2020-12-23 16:59:32,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:59:32,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:32,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:59:32,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:59:32,320 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 6 states. [2020-12-23 16:59:32,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:32,386 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-12-23 16:59:32,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 16:59:32,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-23 16:59:32,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:32,388 INFO L225 Difference]: With dead ends: 18 [2020-12-23 16:59:32,388 INFO L226 Difference]: Without dead ends: 18 [2020-12-23 16:59:32,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-23 16:59:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-23 16:59:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-23 16:59:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-23 16:59:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-12-23 16:59:32,392 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 12 [2020-12-23 16:59:32,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:32,392 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-12-23 16:59:32,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:59:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-12-23 16:59:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 16:59:32,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:32,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:32,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 16:59:32,394 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:32,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:32,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1254134955, now seen corresponding path program 1 times [2020-12-23 16:59:32,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:32,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189292626] [2020-12-23 16:59:32,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:32,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189292626] [2020-12-23 16:59:32,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:32,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 16:59:32,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195977226] [2020-12-23 16:59:32,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:59:32,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:32,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:59:32,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:59:32,468 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 6 states. [2020-12-23 16:59:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:32,552 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-12-23 16:59:32,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 16:59:32,552 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-23 16:59:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:32,553 INFO L225 Difference]: With dead ends: 17 [2020-12-23 16:59:32,553 INFO L226 Difference]: Without dead ends: 17 [2020-12-23 16:59:32,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-23 16:59:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-23 16:59:32,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-23 16:59:32,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-23 16:59:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2020-12-23 16:59:32,557 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 13 [2020-12-23 16:59:32,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:32,557 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2020-12-23 16:59:32,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:59:32,557 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-12-23 16:59:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 16:59:32,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:32,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:32,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 16:59:32,559 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-23 16:59:32,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:32,559 INFO L82 PathProgramCache]: Analyzing trace with hash 223478001, now seen corresponding path program 1 times [2020-12-23 16:59:32,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:32,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298928281] [2020-12-23 16:59:32,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:59:32,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:59:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:59:32,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:59:32,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 16:59:32,627 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 16:59:32,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 16:59:32,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:59:32 BoogieIcfgContainer [2020-12-23 16:59:32,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 16:59:32,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 16:59:32,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 16:59:32,675 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 16:59:32,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:30" (3/4) ... [2020-12-23 16:59:32,678 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 16:59:32,732 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memsafety/test-0158-3.i-witness.graphml [2020-12-23 16:59:32,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 16:59:32,734 INFO L168 Benchmark]: Toolchain (without parser) took 2990.25 ms. Allocated memory was 159.4 MB in the beginning and 202.4 MB in the end (delta: 43.0 MB). Free memory was 132.7 MB in the beginning and 129.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,735 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 16:59:32,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.05 ms. Allocated memory is still 159.4 MB. Free memory was 132.5 MB in the beginning and 139.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.28 ms. Allocated memory is still 159.4 MB. Free memory was 139.5 MB in the beginning and 137.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,737 INFO L168 Benchmark]: Boogie Preprocessor took 28.02 ms. Allocated memory is still 159.4 MB. Free memory was 137.4 MB in the beginning and 136.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,738 INFO L168 Benchmark]: RCFGBuilder took 494.81 ms. Allocated memory is still 159.4 MB. Free memory was 136.3 MB in the beginning and 118.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,739 INFO L168 Benchmark]: TraceAbstraction took 1678.36 ms. Allocated memory was 159.4 MB in the beginning and 202.4 MB in the end (delta: 43.0 MB). Free memory was 118.0 MB in the beginning and 131.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,740 INFO L168 Benchmark]: Witness Printer took 57.51 ms. Allocated memory is still 202.4 MB. Free memory was 131.2 MB in the beginning and 129.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:32,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 672.05 ms. Allocated memory is still 159.4 MB. Free memory was 132.5 MB in the beginning and 139.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.28 ms. Allocated memory is still 159.4 MB. Free memory was 139.5 MB in the beginning and 137.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.02 ms. Allocated memory is still 159.4 MB. Free memory was 137.4 MB in the beginning and 136.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 494.81 ms. Allocated memory is still 159.4 MB. Free memory was 136.3 MB in the beginning and 118.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1678.36 ms. Allocated memory was 159.4 MB in the beginning and 202.4 MB in the end (delta: 43.0 MB). Free memory was 118.0 MB in the beginning and 131.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. * Witness Printer took 57.51 ms. Allocated memory is still 202.4 MB. Free memory was 131.2 MB in the beginning and 129.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 655]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L642-L649] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L650] data.p0 = malloc(37U) [L651] data.str.p2 = &data [L652] EXPR data.p0 [L652] void *ptr = data.p0; [L653] data.str.c[1] = sizeof data.str.p1 [L654] EXPR data.p0 [L654] free(data.p0) [L654] free(data.p0) [L654] free(data.p0) [L655] free(ptr) [L655] free(ptr) [L655] free(ptr) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 142 SDslu, 53 SDs, 0 SdLazy, 147 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 3679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...